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video: use gpio_request_one 

Using gpio_request_one can make the code simpler because it can
set the direction and initial value in one shot.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Michael Hennerich <michael.hennerich@analog.com>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
This commit is contained in:
Jingoo Han 2012-01-26 19:32:34 +09:00 committed by Florian Tobias Schandinat
parent 1c16697bf9
commit f8bd493456
9 changed files with 20 additions and 48 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/video/bf537-lq035.c
View File

@ -383,23 +383,19 @@ static int __devinit request_ports(void)
}
#if (defined(UD) && defined(LBR))
if (gpio_request(UD, KBUILD_MODNAME)) {
if (gpio_request_one(UD, GPIOF_OUT_INIT_LOW, KBUILD_MODNAME)) {
pr_err("requesting GPIO %d failed\n", UD);
return -EBUSY;
}
if (gpio_request(LBR, KBUILD_MODNAME)) {
if (gpio_request_one(LBR, GPIOF_OUT_INIT_HIGH, KBUILD_MODNAME)) {
pr_err("requesting GPIO %d failed\n", LBR);
gpio_free(UD);
return -EBUSY;
}
gpio_direction_output(UD, 0);
gpio_direction_output(LBR, 1);
#endif
if (gpio_request(MOD, KBUILD_MODNAME)) {
if (gpio_request_one(MOD, GPIOF_OUT_INIT_HIGH, KBUILD_MODNAME)) {
pr_err("requesting GPIO %d failed\n", MOD);
#if (defined(UD) && defined(LBR))
gpio_free(LBR);
@ -408,8 +404,6 @@ static int __devinit request_ports(void)
return -EBUSY;
}
gpio_direction_output(MOD, 1);
SSYNC();
return 0;
}

4
drivers/video/bf54x-lq043fb.c
View File

@ -240,7 +240,7 @@ static int request_ports(struct bfin_bf54xfb_info *fbi)
u16 eppi_req_18[] = EPPI0_18;
u16 disp = fbi->mach_info->disp;
if (gpio_request(disp, DRIVER_NAME)) {
if (gpio_request_one(disp, GPIOF_OUT_INIT_HIGH, DRIVER_NAME)) {
printk(KERN_ERR "Requesting GPIO %d failed\n", disp);
return -EFAULT;
}
@ -263,8 +263,6 @@ static int request_ports(struct bfin_bf54xfb_info *fbi)
}
}
gpio_direction_output(disp, 1);
return 0;
}

8
drivers/video/bfin-lq035q1-fb.c
View File

@ -365,10 +365,10 @@ static int __devinit bfin_lq035q1_request_ports(struct platform_device *pdev,
* Drive PPI_FS3 Low
*/
if (ANOMALY_05000400) {
int ret = gpio_request(P_IDENT(P_PPI0_FS3), "PPI_FS3");
int ret = gpio_request_one(P_IDENT(P_PPI0_FS3),
GPIOF_OUT_INIT_LOW, "PPI_FS3");
if (ret)
return ret;
gpio_direction_output(P_IDENT(P_PPI0_FS3), 0);
}
if (ppi16)
@ -716,14 +716,14 @@ static int __devinit bfin_lq035q1_probe(struct platform_device *pdev)
}
if (info->disp_info->use_bl) {
ret = gpio_request(info->disp_info->gpio_bl, "LQ035 Backlight");
ret = gpio_request_one(info->disp_info->gpio_bl,
GPIOF_OUT_INIT_LOW, "LQ035 Backlight");
if (ret) {
dev_err(&pdev->dev, "failed to request GPIO %d\n",
info->disp_info->gpio_bl);
goto out9;
}
gpio_direction_output(info->disp_info->gpio_bl, 0);
}
ret = register_framebuffer(fbinfo);

5
drivers/video/bfin_adv7393fb.c
View File

@ -411,12 +411,13 @@ static int __devinit bfin_adv7393_fb_probe(struct i2c_client *client,
/* Workaround "PPI Does Not Start Properly In Specific Mode" */
if (ANOMALY_05000400) {
if (gpio_request(P_IDENT(P_PPI0_FS3), "PPI0_FS3")) {
ret = gpio_request_one(P_IDENT(P_PPI0_FS3), GPIOF_OUT_INIT_LOW,
"PPI0_FS3")
if (ret) {
dev_err(&client->dev, "PPI0_FS3 GPIO request failed\n");
ret = -EBUSY;
goto out_8;
}
gpio_direction_output(P_IDENT(P_PPI0_FS3), 0);
}
if (peripheral_request_list(ppi_pins, DRIVER_NAME)) {

7
drivers/video/msm/mddi_client_nt35399.c
View File

@ -155,14 +155,10 @@ static int setup_vsync(struct panel_info *panel, int init)
ret = 0;
goto uninit;
}
ret = gpio_request(gpio, "vsync");
ret = gpio_request_one(gpio, GPIOF_IN, "vsync");
if (ret)
goto err_request_gpio_failed;
ret = gpio_direction_input(gpio);
if (ret)
goto err_gpio_direction_input_failed;
ret = irq = gpio_to_irq(gpio);
if (ret < 0)
goto err_get_irq_num_failed;
@ -180,7 +176,6 @@ uninit:
free_irq(gpio_to_irq(gpio), panel->client_data);
err_request_irq_failed:
err_get_irq_num_failed:
err_gpio_direction_input_failed:
gpio_free(gpio);
err_request_gpio_failed:
return ret;

7
drivers/video/msm/mddi_client_toshiba.c
View File

@ -186,14 +186,10 @@ static int setup_vsync(struct panel_info *panel,
ret = 0;
goto uninit;
}
ret = gpio_request(gpio, "vsync");
ret = gpio_request_one(gpio, GPIOF_IN, "vsync");
if (ret)
goto err_request_gpio_failed;
ret = gpio_direction_input(gpio);
if (ret)
goto err_gpio_direction_input_failed;
ret = irq = gpio_to_irq(gpio);
if (ret < 0)
goto err_get_irq_num_failed;
@ -210,7 +206,6 @@ uninit:
free_irq(gpio_to_irq(gpio), panel);
err_request_irq_failed:
err_get_irq_num_failed:
err_gpio_direction_input_failed:
gpio_free(gpio);
err_request_gpio_failed:
return ret;

10
drivers/video/omap/lcd_inn1610.c
View File

@ -22,7 +22,7 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <asm/gpio.h>
#include <linux/gpio.h>
#include "omapfb.h"
#define MODULE_NAME "omapfb-lcd_h3"
@ -32,20 +32,18 @@ static int innovator1610_panel_init(struct lcd_panel *panel,
{
int r = 0;
if (gpio_request(14, "lcd_en0")) {
/* configure GPIO(14, 15) as outputs */
if (gpio_request_one(14, GPIOF_OUT_INIT_LOW, "lcd_en0")) {
pr_err(MODULE_NAME ": can't request GPIO 14\n");
r = -1;
goto exit;
}
if (gpio_request(15, "lcd_en1")) {
if (gpio_request_one(15, GPIOF_OUT_INIT_LOW, "lcd_en1")) {
pr_err(MODULE_NAME ": can't request GPIO 15\n");
gpio_free(14);
r = -1;
goto exit;
}
/* configure GPIO(14, 15) as outputs */
gpio_direction_output(14, 0);
gpio_direction_output(15, 0);
exit:
return r;
}

4
drivers/video/omap2/displays/panel-taal.c
View File

@ -1019,14 +1019,12 @@ static int taal_probe(struct omap_dss_device *dssdev)
if (panel_data->use_ext_te) {
int gpio = panel_data->ext_te_gpio;
r = gpio_request(gpio, "taal irq");
r = gpio_request_one(gpio, GPIOF_IN, "taal irq");
if (r) {
dev_err(&dssdev->dev, "GPIO request failed\n");
goto err_gpio;
}
gpio_direction_input(gpio);
r = request_irq(gpio_to_irq(gpio), taal_te_isr,
IRQF_TRIGGER_RISING,
"taal vsync", dssdev);

11
drivers/video/omap2/displays/panel-tpo-td043mtea1.c
View File

@ -408,17 +408,12 @@ static int tpo_td043_probe(struct omap_dss_device *dssdev)
}
if (gpio_is_valid(nreset_gpio)) {
ret = gpio_request(nreset_gpio, "lcd reset");
ret = gpio_request_one(nreset_gpio, GPIOF_OUT_INIT_LOW,
"lcd reset");
if (ret < 0) {
dev_err(&dssdev->dev, "couldn't request reset GPIO\n");
goto fail_gpio_req;
}
ret = gpio_direction_output(nreset_gpio, 0);
if (ret < 0) {
dev_err(&dssdev->dev, "couldn't set GPIO direction\n");
goto fail_gpio_direction;
}
}
ret = sysfs_create_group(&dssdev->dev.kobj, &tpo_td043_attr_group);
@ -427,8 +422,6 @@ static int tpo_td043_probe(struct omap_dss_device *dssdev)
return 0;
fail_gpio_direction:
gpio_free(nreset_gpio);
fail_gpio_req:
regulator_put(tpo_td043->vcc_reg);
fail_regulator: